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diff --git a/media/libvorbis/lib/lsp.h b/media/libvorbis/lib/lsp.h
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+/********************************************************************
+ * *
+ * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009 *
+ * by the Xiph.Org Foundation https://xiph.org/ *
+ * *
+ ********************************************************************
+
+ function: LSP (also called LSF) conversion routines
+
+ ********************************************************************/
+
+
+#ifndef _V_LSP_H_
+#define _V_LSP_H_
+
+extern int vorbis_lpc_to_lsp(float *lpc,float *lsp,int m);
+
+extern void vorbis_lsp_to_curve(float *curve,int *map,int n,int ln,
+ float *lsp,int m,
+ float amp,float ampoffset);
+
+#endif